2025 Polygon Bikes Strattos S8X

	XS	S	M	L	XL	XXL
Stack	495mm	511mm	534mm	558mm	584mm	612mm
Reach	383mm	384mm	387mm	390mm	392mm	403mm
Stack to Reach Ratio	1.29:1	1.33:1	1.38:1	1.43:1	1.49:1	1.52:1
Seat Tube Length, C-T	454mm	474mm	500mm	525mm	554mm	584mm
Top Tube Length, Effective/Horizontal Center	515mm	525mm	540mm	555mm	570mm	590mm
Top Tube Slope	6.4deg	6.1deg	5.8deg	5.8deg	5.6deg	5.3deg
Head Tube Angle	72deg	72.5deg	73deg	73deg	73deg	73deg
Seat Tube Angle	75deg	74.5deg	74deg	73.5deg	73deg	73deg
Head Tube Length	90mm	105mm	130mm	155mm	185mm	215mm
Bottom Bracket Drop	72.5mm	72.5mm	70mm	70mm	67.5mm	67.5mm
Bottom Bracket Height	266.5mm	266.5mm	269mm	269mm	271.5mm	271.5mm
Chainstay Length	415mm	415mm	415mm	415mm	417mm	417mm
Chainstay Length Horizontal	408.6mm	408.6mm	409.1mm	409.1mm	411.5mm	411.5mm
Front-Center	572mm	573mm	580.2mm	590.1mm	600.3mm	620.2mm
Front-Center Horizontal	567.4mm	568.4mm	576mm	586mm	596.5mm	616.5mm
Wheelbase	976mm	977mm	985mm	995mm	1008mm	1028mm
Fork Offset/Rake	44.8mm	44mm	45mm	44.7mm	44.6mm	45mm
Trail	63mm mid/neutral	60.8mm mid/neutral	56.6mm mid/neutral	56.9mm mid/neutral	57.1mm mid/neutral	56.6mm mid/neutral
Mechanical Trail	60mm	58mm	54.1mm	54.4mm	54.6mm	54.1mm
Wheel Flop	18.5mm	17.4mm	15.8mm	15.9mm	16mm	15.8mm
Standover Height	729mm	749mm	776mm	801mm	832mm	862mm
Tire to Pedal Spindle	68mm 165 mm cranks	64mm 170 mm cranks	71.2mm 170 mm cranks	81.1mm 170 mm cranks	88.8mm 172.5 mm cranks	108.7mm 172.5 mm cranks
Pedal Spindle to Ground Clearance	101.5mm 165 mm cranks	96.5mm 170 mm cranks	99mm 170 mm cranks	99mm 170 mm cranks	99mm 172.5 mm cranks	99mm 172.5 mm cranks

	XS	S	M	L	XL	XXL
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	28mm	28mm	28mm	28mm	28mm
Tire Outer Diameter	678mm	678mm	678mm	678mm	678mm	678mm
Bike Length with Tires	1654mm	1655mm	1663mm	1673mm	1686mm	1706mm
Crank Length	165mm	170mm	170mm	170mm	172.5mm	172.5mm
Handlebar Width	400mm	400mm	400mm	420mm	420mm	420mm
Stem Length	90mm	90mm	100mm	100mm	110mm	110mm

Published Sizing Recommendations

Height

154 cm

164 cm

162 cm

170 cm

168 cm

176 cm

174 cm

183 cm

180 cm

187 cm

185 cm

195 cm

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Category Trend

Source:https://www.bikesonline.com/2025-polygon-strattos-s8x-road-bike